Does long-term planning actually work?

Hey everyone! Today I climbed to a scenic lookout point, and seeing so far made me a bit reflective. I've always been the kind of person that loves strategy and long-term planning, but my own life has led me to wonder whether we, as individuals, can ever really have a cohesive plan for the future. Life has endless surprises, so I guess it's really just about being ready to respond to them.